(October 29, 2015, 11:13 AM EDT) -- DENVER — A doctor cannot testify that a prison inmate did not need to be seen by an in-house medical provider and that he would have had to wait four to six hours to be seen at a university hospital, a Colorado federal judge ruled Oct. 27, also finding that the doctor cannot opine regarding patients with a chronic history of kidney stones (Homaidan Al-Turki v. Mary Susan Robinson, RN, No. 10-02404, D. Colo.; 2015 U.S. Dist. LEXIS 145608).